New Worksheet Chapter 12

D.C.MODEL SR. SEC. SCHOOL

CHAPTER 12

WHAT IF IT FINISHES

WORKSHEET

Q1. FILL IN THE BLANKS:-

1.    Vehicles run on ____. (fuel)

2.    On the posters at the petrol pump, it is written that ____ and _____ will not last forever. (petrol, diesel)

3.    Petrol is formed ___ but very slowly. (naturally)

4.    _____ energy is renewable and unlimited.(solar)

5.    About ____ people in our country use cow dung cakes (uple), wood dry twigs etc.(2/3)

6.    We should switch off the ____ of our vehicles when we stop at the red light. (engine)

7.    ___ is a health hazard caused due to the smoke emitted from vehicles.(cough)

Q2. CHOOSE THE CORRECT ANSWER:-

1.    ___ is a smelly, thick, dark coloured liquid.

a.    Diesel    b. petrol    c. oil      d. petroleum     (d)

2.    We get kerosene, diesel, petrol, engine oil, wax etc. from ____.

a.    Ground   b. hills    c. mountains    d. rocks     (d)

3.    Petroleum is cleaned and its products are separated in a ___.

a.    Factory     b. refinery    c. shops      d. markets.

4.    There is a lot of smoke when ____ wood is burnt.

a.    Dry            b. damp        c. wet        d. soft

Q3. Answer the following questions:-

1.    What do women in the village use to make a fire to cook food?    

Ans: Women in the village use cow dung cakes, wood and dry twigs to make fire to cook food.

2.    Which states of India have oil fields?

Ans: Maharashtra, Rajasthan and Assam.

3.    Besides oil, what else is found deep inside the earth?

Ans: Coal, bauxite, gold, silver, copper, diamond etc.

4.    What can the term oil be used for?

Ans: The term oil is used for petroleum.

5.    Why do the majority of the people in our country use cow dung, wood and dry twigs?

Ans: The majority of the people of India use these things as they don’t have money to buy food even. So they cannot afford LPG gas cylinders.

6.    Name the products obtained from petroleum.

Ans: Petrol, Diesel, wax, grease, kerosene oil, plastic, paints etc.

7.    What is solar energy? What are the different uses of solar energy?

Ans: Energy that is obtained from sun is called solar energy.

With solar energy:-

a.    We can run vehicles.

b.    We can cook food.

c.     We can generate electricity.

d.    We can run machines.